<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
     <style>
         .main{
             width: 500px;
             display: flex;
             align-items: flex-end;
             /*align-items: baseline;*/
             border: 1px solid red;
         }

         .main .asda{
             width: 100px;
             height: 100px;
             background-color: red;
         }
     </style>
</head>
<body>
    <div class="main">
        xgz
        <div class="asda"></div>
    </div>
</body>
</html>
